Fullstack Development

Applications that deliver on their promises

Custom web and mobile apps, RESTful and GraphQL APIs, user interfaces, microservices and third-party integrations. React, Next.js, FastAPI, NestJS · developed, tested and deployed to production with high engineering standards.

React / Next.js TypeScript web appsRESTful & GraphQL APIs (FastAPI, NestJS)React Native mobile applicationsMicroservices architecture & API GatewayCI/CD, automated tests & cloud deployment

4 expertise areas, one complete product

From frontend to DevOps, through backend and mobile · we cover the entire development cycle with high quality standards.

Frontend & User Interfaces

Modern web interfaces with React, Next.js (App Router, SSR, SSG) and TypeScript. Scalable design systems, WCAG 2.1 AA accessibility, i18n internationalization, dark mode and smooth animations. Core Web Vitals optimization built into development. Unit tests (Jest, Testing Library) and E2E (Playwright) included in every delivery.

Concrete exampleResult: multi-tenant B2B SaaS dashboard · 40 components, Lighthouse score 98, 100% TypeScript, delivered in 8 weeks.
ReactNext.js
Backend & APIs

High-performance RESTful and GraphQL APIs with FastAPI (Python) or NestJS (TypeScript). Microservices architecture, API Gateway, JWT/OAuth2 authentication, rate limiting and automatic OpenAPI/Swagger documentation. PostgreSQL and NoSQL (MongoDB, Redis) databases. Versioned migrations, integration tests and APM monitoring included.

Concrete exampleResult: FastAPI serving 2M requests/day · p99 < 45ms, 99.98% uptime, 94% test coverage.
FastAPINestJSPGPostgreSQLPython
Mobile Applications

Cross-platform development with React Native for iOS and Android from a single codebase. Native performance, smooth navigation (Expo Router), state management (Zustand, Redux Toolkit), push notifications, camera and sensor access, offline-first sync with your REST API. App Store and Google Play publishing included.

Concrete exampleResult: field mobile app for 200 technicians · offline-first, auto-sync, 4.8 stars on both stores.
ReactFastAPI
DevOps & CI/CD

CI/CD pipelines with GitHub Actions or GitLab CI: automated tests, build, lint, type-check and automatic deployment to staging and production. Docker containerization, Kubernetes orchestration, Infrastructure as Code (Terraform). Grafana/Prometheus monitoring and Slack alerts. Systematic code reviews and operational runbooks to ensure service continuity.

Concrete exampleResult: CI/CD pipeline for Next.js + FastAPI stack · deployment in 4 min, rollback in 30 seconds, zero downtime.
DockerKubernetesReactNext.js

Our delivery process

From the initial audit to production deployment, here is how we build and deliver your solution.

01
Technical Specification

User stories definition, technical architecture, technology choices and environment setup.

02
Development Sprints

1-2 week sprints with daily standup, end-of-sprint demos and validation at each step.

03
Tests & Quality

Unit, integration, E2E, performance and security tests. Systematic code review.

04
Deployment & Support

Production deployment, post-launch monitoring, bug fixes and evolution roadmap.

Let's talk

Ready to deploy this solution?

Describe your use case and we'll propose an architecture tailored to your stack and goals. Response within 24h.